Coronation Street viewers spotted an issue as Kevin Webster was heartbroken.
Wednesday's episode of the long-running soap explored the fallout after Abigail Webster tearfully confessed to Sally she cheated on her husband.
Abi tried to put the infidelity behind her on tonight's show as Kevin tried to take her mind off the upcoming adoption hearing.
READ MORE: ITV announce major TV change for Coronation Street fans
Sally is the social worker dealing with the case - and contacted Abi to give an update after the judge ruled to reconvene the hearing until March 14.
Abi urged Sally to keep her secret as the revelation would break Kevin's heart, but the social worker said she couldn't keep any promises.
Kevin had been showing Abi around their newly rented camper van before she took the call - and Abi had unknowingly connected her phone to the vehicle's Bluetooth system, which allowed Kevin to hear the whole thing.
This prompted the character, played by Michael Le Vell, to confront his wife, who confessed her affair to him.
However, viewers following the show on Twitter spotted a problem as they wondered how the phone had connected to the Bluetooth system.
Jacob said: "How was Abi's phone connected to the van's radio Bluetooth?"
HIlda posted: "I wish my car's Bluetooth system would broadcast both sides of a conversation, rather than the one which was - you know - *not* the person actually in the vehicle."
Tina posted: "Van wouldn’t start.. how did they manage to connect Abi’s phone to it"
Coronation Street airs Mondays, Wednesdays and Fridays on ITV and ITV Hub
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